名校
解题方法
1 . 在
中,A,B,C的对边分别为a,b,c,且
.
(1)求A的大小;
(2)若
,且
,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee29af0ad24e457fc7be2d44852f482.png)
(1)求A的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d3249bb162f76416a37c6964c21304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/009e73c53f2ed3ccf37bb054b8ff064d.png)
您最近一年使用:0次
2021-07-13更新
|
750次组卷
|
6卷引用:陕西省宝鸡市渭滨区2022届高三下学期一模文科数学试题
2 . 已知函数
,
.
(1)求函数
的递增区间;
(2)在
中,内角
满足
,且
,
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927785ba550d7ab812dbe769a921873d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58119f48aa8860923d1f13dd78a17c62.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5e43fa675015967aab2fb2b44d8ce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f449a1158da738d2c6a49ccfa90a4400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2021-05-03更新
|
627次组卷
|
2卷引用:陕西省宝鸡市2021届高三下学期高考模拟检测(三)理科数学试题
名校
解题方法
3 . 如图带有坐标系的单位圆O中,设
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6276ff5468f5aa9c6eaff479c26cc7.png)
(2)若
,
,
,
,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08517b94b81cf2edff3d09d7073412fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bce3fc8fa60045af4c75e596d956e17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23aaac864fc78d73e2248327433e3d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6276ff5468f5aa9c6eaff479c26cc7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d394016b9fecac73f38cbc4ff18dee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f07029c97c324d32f258f18a96654a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d590efabf20f5e49b138aceb068a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1615dd4f2f844053c39f552fe03e8621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
您最近一年使用:0次
2020-09-04更新
|
1125次组卷
|
4卷引用:陕西省商洛市商丹高新学校2020届高三下学期考前适应性训练理科数学试题
解题方法
4 . 如图,在
中,
,M为
的中点.
![](https://img.xkw.com/dksih/QBM/2020/4/5/2435070618624000/2435813305065472/STEM/6dea4221899b455f9da98490ca5b830a.png?resizew=150)
(1)当
时,求
的值;
(2)当
的面积为8时,线段
上一点P,满足
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dfc9d1109fe41145cc892b5702d9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2020/4/5/2435070618624000/2435813305065472/STEM/6dea4221899b455f9da98490ca5b830a.png?resizew=150)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bd9ad4637d814640e57825dff333411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbe89d0ce747d21036a5ba5415a88d78.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4718b32c15fac6bb796fe33318fc0142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60cf55ae70e3fc3ec6acf5fdf29d259c.png)
您最近一年使用:0次
名校
解题方法
5 . 在平行四边形ABCD中,边
,
,
,若M,N分别是边BC,CD上的点,且满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c144e9b7986f74a0e45eff488b1304.png)
.
(1)当
时,若
,求
;
(2)试求
取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dbf31dfd36aa456a63bafea8bc1985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c144e9b7986f74a0e45eff488b1304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2e48341bf9ce1d6ba26b31616f97b0.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a2a34b4317deffa40ba34e269c2b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42b8a4e130af974aa5ebfc487fbe8a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
(2)试求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd92ed9c7d216873545ea59101b6ce1b.png)
您最近一年使用:0次
名校
6 . 在
中,
,
,
.
(Ⅰ)求
的值;
(Ⅱ)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2264c134952d41fb9bcb90e6c72c83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88a95f9136fe8f648f21b332447a49d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/201cf28f29b696411bf29e44504e39a7.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/496ef238b6bc199b4df0f1cb8c132d38.png)
(Ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/660d411077d7809d006fb3d534314ca1.png)
您最近一年使用:0次
2019-04-29更新
|
645次组卷
|
4卷引用:【校级联考】陕西省西安地区陕师大附中、西安高级中学等八校2019届高三4月联考数学(理)试题
7 . 已知函数
.
(1)求
的单调递增区间;
(2)在
中,三内角A,B,C的对边分别为a、b、c,若
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4412a34091f001919005100be0679e36.png)
,b,a,c成等差数列,求角A及a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db19d560ac4e8d35c3df2537e34260a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/874adf20cb27b7a20a1f4aafd0920325.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4412a34091f001919005100be0679e36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
您最近一年使用:0次